/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2c_append_unequal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:04:25,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:04:25,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:04:25,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:04:25,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:04:25,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:04:25,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:04:25,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:04:25,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:04:25,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:04:25,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:04:25,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:04:25,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:04:25,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:04:25,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:04:25,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:04:25,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:04:25,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:04:25,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:04:25,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:04:25,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:04:25,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:04:25,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:04:25,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:04:25,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:04:25,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:04:25,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:04:25,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:04:25,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:04:25,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:04:25,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:04:25,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:04:25,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:04:25,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:04:25,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:04:25,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:04:25,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:04:25,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:04:25,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:04:25,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:04:25,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:04:25,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:04:25,733 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:04:25,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:04:25,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:04:25,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:04:25,735 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:04:25,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:04:25,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:04:25,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:04:25,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:04:25,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:04:25,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:04:25,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:04:25,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:04:25,736 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:04:25,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:04:25,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:04:25,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:04:25,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:04:25,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:04:25,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:04:25,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:04:25,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:04:25,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:04:25,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:04:25,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:04:25,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:04:25,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:04:25,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:04:25,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:04:25,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:04:26,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:04:26,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:04:26,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:04:26,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:04:26,084 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:04:26,084 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_append_unequal.i [2020-10-14 05:04:26,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f19e2e87/c09fc29063dc49b3a3ab8f1de02e1f14/FLAGe1162fdac [2020-10-14 05:04:26,758 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:04:26,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-simple/dll2c_append_unequal.i [2020-10-14 05:04:26,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f19e2e87/c09fc29063dc49b3a3ab8f1de02e1f14/FLAGe1162fdac [2020-10-14 05:04:26,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f19e2e87/c09fc29063dc49b3a3ab8f1de02e1f14 [2020-10-14 05:04:26,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:04:26,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:04:26,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:04:26,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:04:26,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:04:26,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:04:26" (1/1) ... [2020-10-14 05:04:26,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6668710e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:26, skipping insertion in model container [2020-10-14 05:04:26,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:04:26" (1/1) ... [2020-10-14 05:04:26,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:04:27,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:04:27,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:04:27,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:04:27,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:04:27,610 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:04:27,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27 WrapperNode [2020-10-14 05:04:27,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:04:27,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:04:27,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:04:27,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:04:27,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... [2020-10-14 05:04:27,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:04:27,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:04:27,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:04:27,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:04:27,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-10-14 05:04:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2020-10-14 05:04:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2020-10-14 05:04:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_append [2020-10-14 05:04:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:04:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:04:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-14 05:04:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-14 05:04:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-14 05:04:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-14 05:04:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-14 05:04:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-14 05:04:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-14 05:04:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-14 05:04:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-14 05:04:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-14 05:04:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-14 05:04:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-14 05:04:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-14 05:04:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-14 05:04:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-14 05:04:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-14 05:04:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-14 05:04:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-14 05:04:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-14 05:04:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-14 05:04:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-14 05:04:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-14 05:04:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-14 05:04:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-14 05:04:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-14 05:04:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-14 05:04:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-14 05:04:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-14 05:04:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-14 05:04:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-14 05:04:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-14 05:04:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-14 05:04:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-14 05:04:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-14 05:04:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 05:04:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-14 05:04:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 05:04:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-14 05:04:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-14 05:04:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-14 05:04:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-14 05:04:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-14 05:04:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-14 05:04:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-14 05:04:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-14 05:04:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 05:04:27,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 05:04:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 05:04:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2020-10-14 05:04:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2020-10-14 05:04:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 05:04:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 05:04:27,763 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_append [2020-10-14 05:04:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:04:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 05:04:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 05:04:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 05:04:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:04:27,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:04:28,162 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-10-14 05:04:28,482 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:04:28,482 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 05:04:28,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:28 BoogieIcfgContainer [2020-10-14 05:04:28,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:04:28,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:04:28,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:04:28,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:04:28,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:04:26" (1/3) ... [2020-10-14 05:04:28,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ac2971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:04:28, skipping insertion in model container [2020-10-14 05:04:28,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:04:27" (2/3) ... [2020-10-14 05:04:28,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ac2971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:04:28, skipping insertion in model container [2020-10-14 05:04:28,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:04:28" (3/3) ... [2020-10-14 05:04:28,495 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_append_unequal.i [2020-10-14 05:04:28,505 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:04:28,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:04:28,528 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:04:28,551 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:04:28,552 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:04:28,552 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:04:28,552 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:04:28,552 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:04:28,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:04:28,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:04:28,553 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:04:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-14 05:04:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 05:04:28,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:04:28,578 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:04:28,579 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:04:28,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:04:28,584 INFO L82 PathProgramCache]: Analyzing trace with hash 656525943, now seen corresponding path program 1 times [2020-10-14 05:04:28,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:04:28,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909194881] [2020-10-14 05:04:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:04:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:28,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:29,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:29,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:30,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:30,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 05:04:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:04:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1488 [2020-10-14 05:04:30,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:30,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:30,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 05:04:30,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 05:04:30,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:04:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:30,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:30,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:30,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:04:30,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:30,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:04:30,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:30,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:30,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:30,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:30,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:04:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:30,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:30,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:30,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:04:30,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:30,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 05:04:30,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:30,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:04:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:30,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:30,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:30,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:30,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:30,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:30,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:30,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:04:30,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:30,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:30,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:30,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:30,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:30,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:30,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:04:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:30,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:30,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:30,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:04:30,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:30,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 05:04:30,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:30,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:30,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:04:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:30,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 26 [2020-10-14 05:04:30,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:30,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:30,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:30,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:30,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:30,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:04:30,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:30,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:30,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 05:04:30,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909194881] [2020-10-14 05:04:30,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:04:30,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 05:04:30,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616162934] [2020-10-14 05:04:30,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 05:04:30,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:04:30,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 05:04:30,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 05:04:30,516 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2020-10-14 05:04:30,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:04:30,764 INFO L93 Difference]: Finished difference Result 101 states and 127 transitions. [2020-10-14 05:04:30,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 05:04:30,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-10-14 05:04:30,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:04:30,777 INFO L225 Difference]: With dead ends: 101 [2020-10-14 05:04:30,777 INFO L226 Difference]: Without dead ends: 41 [2020-10-14 05:04:30,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:04:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-14 05:04:30,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-14 05:04:30,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-14 05:04:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-10-14 05:04:30,829 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 36 [2020-10-14 05:04:30,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:04:30,831 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-10-14 05:04:30,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 05:04:30,831 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-10-14 05:04:30,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 05:04:30,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:04:30,834 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:04:30,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:04:30,834 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:04:30,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:04:30,835 INFO L82 PathProgramCache]: Analyzing trace with hash -2091035926, now seen corresponding path program 1 times [2020-10-14 05:04:30,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:04:30,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508497822] [2020-10-14 05:04:30,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:04:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:30,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:31,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:31,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:33,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:33,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 05:04:33,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:04:33,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2496 [2020-10-14 05:04:33,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:33,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:04:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:04:33,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 05:04:33,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:33,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:04:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:33,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:33,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:33,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:04:33,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:04:33,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:33,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:33,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:33,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:04:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:04:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:33,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:33,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:33,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 05:04:33,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:33,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 05:04:33,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:33,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:33,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:04:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 05:04:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 05:04:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:33,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:33,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:33,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:33,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:33,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:33,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 05:04:33,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:33,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:33,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:04:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:33,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:04:33,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:33,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 05:04:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:33,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:33,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:33,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:04:33,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:33,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 05:04:33,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:33,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:33,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:04:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:33,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:33,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:33,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:33,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:33,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 05:04:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:33,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 05:04:33,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508497822] [2020-10-14 05:04:33,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:04:33,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 05:04:33,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337208676] [2020-10-14 05:04:33,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 05:04:33,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:04:33,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 05:04:33,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:04:33,611 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 7 states. [2020-10-14 05:04:33,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:04:33,824 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2020-10-14 05:04:33,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 05:04:33,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2020-10-14 05:04:33,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:04:33,826 INFO L225 Difference]: With dead ends: 72 [2020-10-14 05:04:33,827 INFO L226 Difference]: Without dead ends: 46 [2020-10-14 05:04:33,828 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 05:04:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-14 05:04:33,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-14 05:04:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-14 05:04:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-10-14 05:04:33,838 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 36 [2020-10-14 05:04:33,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:04:33,839 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-10-14 05:04:33,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 05:04:33,839 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-10-14 05:04:33,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 05:04:33,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:04:33,841 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:04:33,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:04:33,841 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:04:33,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:04:33,842 INFO L82 PathProgramCache]: Analyzing trace with hash 364861950, now seen corresponding path program 1 times [2020-10-14 05:04:33,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:04:33,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368967389] [2020-10-14 05:04:33,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:04:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:33,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:34,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:35,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:35,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 05:04:35,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:04:35,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1631 [2020-10-14 05:04:35,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:35,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 05:04:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:04:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 05:04:35,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:35,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:04:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:35,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:35,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:35,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:04:35,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:35,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:04:35,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:35,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:35,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:35,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:35,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:35,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:04:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:35,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:35,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:04:35,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:35,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-14 05:04:35,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:35,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 05:04:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:04:35,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:35,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:35,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:35,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:35,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:35,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:35,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:04:35,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:35,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:35,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:35,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:35,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:04:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:35,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:35,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:35,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:35,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:35,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 05:04:35,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:35,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:04:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:35,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:04:35,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:35,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:04:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:36,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:36,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:36,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:04:36,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:36,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 05:04:36,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:36,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 05:04:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:04:36,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:36,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:36,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:36,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:36,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:36,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:36,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 05:04:36,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:36,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:36,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:04:36,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:36,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:04:36,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:04:36,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368967389] [2020-10-14 05:04:36,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:04:36,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-14 05:04:36,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489475438] [2020-10-14 05:04:36,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-14 05:04:36,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:04:36,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-14 05:04:36,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-14 05:04:36,440 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 19 states. [2020-10-14 05:04:37,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:04:37,465 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2020-10-14 05:04:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 05:04:37,468 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 46 [2020-10-14 05:04:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:04:37,470 INFO L225 Difference]: With dead ends: 79 [2020-10-14 05:04:37,470 INFO L226 Difference]: Without dead ends: 46 [2020-10-14 05:04:37,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2020-10-14 05:04:37,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-14 05:04:37,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2020-10-14 05:04:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-14 05:04:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-10-14 05:04:37,491 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 46 [2020-10-14 05:04:37,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:04:37,491 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-10-14 05:04:37,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-14 05:04:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-10-14 05:04:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 05:04:37,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:04:37,494 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:04:37,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:04:37,498 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:04:37,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:04:37,499 INFO L82 PathProgramCache]: Analyzing trace with hash 2139869312, now seen corresponding path program 1 times [2020-10-14 05:04:37,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:04:37,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1914066481] [2020-10-14 05:04:37,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:04:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:37,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-14 05:04:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 05:04:42,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:42,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-14 05:04:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:04:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 05:04:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:43,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:04:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:43,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:43,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:43,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:04:43,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:04:43,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:43,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:43,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:43,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:04:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:43,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:43,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:43,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:04:43,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 579 [2020-10-14 05:04:43,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:43,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 05:04:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 05:04:43,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:44,037 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-10-14 05:04:44,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:44,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:44,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:44,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:44,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:44,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 05:04:44,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:44,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:44,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:04:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:44,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:04:44,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:04:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:44,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:44,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:44,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:44,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:44,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 05:04:44,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:44,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:44,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:04:44,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:44,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:04:44,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:44,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:04:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:45,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:45,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:04:45,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:45,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-10-14 05:04:45,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:45,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:04:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:45,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:04:45,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:04:45,391 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-10-14 05:04:45,769 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2020-10-14 05:04:45,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:45,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:45,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:45,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:45,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:45,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 05:04:45,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:45,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:04:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:04:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:46,614 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 51 [2020-10-14 05:04:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:04:46,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1914066481] [2020-10-14 05:04:46,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:04:46,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-14 05:04:46,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483011124] [2020-10-14 05:04:46,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-14 05:04:46,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:04:46,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-14 05:04:46,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2020-10-14 05:04:46,643 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 28 states. [2020-10-14 05:04:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:04:49,116 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2020-10-14 05:04:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 05:04:49,116 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 46 [2020-10-14 05:04:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:04:49,120 INFO L225 Difference]: With dead ends: 67 [2020-10-14 05:04:49,120 INFO L226 Difference]: Without dead ends: 65 [2020-10-14 05:04:49,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=158, Invalid=1648, Unknown=0, NotChecked=0, Total=1806 [2020-10-14 05:04:49,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-14 05:04:49,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2020-10-14 05:04:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-14 05:04:49,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2020-10-14 05:04:49,132 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 46 [2020-10-14 05:04:49,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:04:49,133 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2020-10-14 05:04:49,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-14 05:04:49,133 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2020-10-14 05:04:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 05:04:49,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:04:49,134 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:04:49,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:04:49,135 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:04:49,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:04:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1048680150, now seen corresponding path program 1 times [2020-10-14 05:04:49,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:04:49,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657317174] [2020-10-14 05:04:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:04:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:49,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:53,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:54,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:54,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 05:04:54,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:04:54,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5275 [2020-10-14 05:04:54,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:54,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 05:04:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:04:54,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 05:04:54,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:54,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:04:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:54,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:54,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:54,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:04:54,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:54,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:04:54,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:54,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:54,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:04:54,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:54,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:04:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:54,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:04:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:54,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:55,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:55,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:04:55,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:55,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-14 05:04:55,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:55,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:55,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-14 05:04:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:55,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:04:55,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:04:55,882 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2020-10-14 05:04:56,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:56,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:56,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 05:04:56,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:56,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:04:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:04:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:04:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:04:56,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:04:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:56,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:56,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:56,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:56,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:56,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 05:04:56,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:56,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:56,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:04:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:56,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:04:56,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:04:56,762 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-10-14 05:04:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:04:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:56,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:57,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:57,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:04:57,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-14 05:04:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:57,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:04:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:04:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:04:58,209 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2020-10-14 05:04:58,987 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 59 [2020-10-14 05:04:59,354 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2020-10-14 05:04:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:04:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:04:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:04:59,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:04:59,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:04:59,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:04:59,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 05:04:59,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:04:59,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:04:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:04:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:04:59,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:04:59,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:04:59,840 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:04:59,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657317174] [2020-10-14 05:04:59,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:04:59,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 05:04:59,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527839587] [2020-10-14 05:04:59,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 05:04:59,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:04:59,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 05:04:59,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=745, Unknown=0, NotChecked=0, Total=812 [2020-10-14 05:04:59,843 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand 29 states. [2020-10-14 05:05:00,740 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2020-10-14 05:05:01,007 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 05:05:01,239 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-14 05:05:03,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:05:03,222 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2020-10-14 05:05:03,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-14 05:05:03,222 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 50 [2020-10-14 05:05:03,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:05:03,224 INFO L225 Difference]: With dead ends: 77 [2020-10-14 05:05:03,224 INFO L226 Difference]: Without dead ends: 75 [2020-10-14 05:05:03,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=156, Invalid=1824, Unknown=0, NotChecked=0, Total=1980 [2020-10-14 05:05:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-14 05:05:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 59. [2020-10-14 05:05:03,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-14 05:05:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2020-10-14 05:05:03,238 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 50 [2020-10-14 05:05:03,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:05:03,239 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2020-10-14 05:05:03,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 05:05:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2020-10-14 05:05:03,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 05:05:03,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:05:03,240 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:05:03,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:05:03,241 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:05:03,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:05:03,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1048636440, now seen corresponding path program 1 times [2020-10-14 05:05:03,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:05:03,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507640169] [2020-10-14 05:05:03,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:05:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:03,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:05,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:08,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:08,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:08,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 05:05:08,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:05:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5325 [2020-10-14 05:05:08,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:08,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 05:05:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:05:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 05:05:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:09,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:05:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:09,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:09,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:09,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:05:09,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:09,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:05:09,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:09,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:09,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:09,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:09,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:05:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:09,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:09,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:09,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:05:09,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 05:05:09,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:09,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 05:05:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:05:09,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:09,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:09,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:09,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:09,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:09,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:05:09,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:09,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:09,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:09,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:05:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:09,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:09,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:09,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:09,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:09,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 05:05:09,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:09,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:05:09,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:09,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:05:09,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:09,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:05:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:09,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:10,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:10,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:05:10,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:10,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-14 05:05:10,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:10,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:10,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 05:05:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:10,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:05:10,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:10,401 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-10-14 05:05:10,742 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-10-14 05:05:11,033 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2020-10-14 05:05:11,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:11,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:11,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:11,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:11,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 05:05:11,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:11,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:05:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:11,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:05:11,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:05:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:05:11,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507640169] [2020-10-14 05:05:11,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:05:11,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 05:05:11,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539751457] [2020-10-14 05:05:11,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 05:05:11,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:05:11,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 05:05:11,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=647, Unknown=0, NotChecked=0, Total=702 [2020-10-14 05:05:11,299 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand 27 states. [2020-10-14 05:05:13,440 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-10-14 05:05:14,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:05:14,023 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2020-10-14 05:05:14,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 05:05:14,024 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 50 [2020-10-14 05:05:14,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:05:14,025 INFO L225 Difference]: With dead ends: 76 [2020-10-14 05:05:14,025 INFO L226 Difference]: Without dead ends: 74 [2020-10-14 05:05:14,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=135, Invalid=1425, Unknown=0, NotChecked=0, Total=1560 [2020-10-14 05:05:14,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-14 05:05:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 61. [2020-10-14 05:05:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-14 05:05:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2020-10-14 05:05:14,038 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 50 [2020-10-14 05:05:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:05:14,039 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2020-10-14 05:05:14,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 05:05:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2020-10-14 05:05:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-14 05:05:14,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:05:14,040 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:05:14,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 05:05:14,041 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:05:14,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:05:14,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1852006879, now seen corresponding path program 1 times [2020-10-14 05:05:14,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:05:14,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248299561] [2020-10-14 05:05:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:05:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:17,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:19,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:19,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 05:05:19,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:05:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5097 [2020-10-14 05:05:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:19,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-14 05:05:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:05:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 05:05:19,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:19,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:05:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:19,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:19,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:19,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:05:19,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:19,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:05:19,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:19,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:19,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:19,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:19,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:19,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:19,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:05:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:19,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:19,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:19,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:05:19,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:19,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-14 05:05:19,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:19,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 05:05:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:19,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 05:05:19,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:05:20,248 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-10-14 05:05:20,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:20,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:20,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:20,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:20,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:20,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 05:05:20,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:20,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:05:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:05:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:05:20,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:05:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:20,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:20,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:20,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:20,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 05:05:20,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:20,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:20,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:05:20,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:20,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:05:20,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:05:21,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:05:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:21,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:21,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:21,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:05:21,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:21,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 05:05:21,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:21,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:21,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:05:21,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:21,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:05:21,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:22,221 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2020-10-14 05:05:22,917 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 81 [2020-10-14 05:05:24,007 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2020-10-14 05:05:24,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:24,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:24,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:24,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:24,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 05:05:24,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:24,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:24,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:05:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:24,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:05:24,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:24,933 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2020-10-14 05:05:24,965 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:05:24,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248299561] [2020-10-14 05:05:24,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:05:24,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-14 05:05:24,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098227517] [2020-10-14 05:05:24,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-14 05:05:24,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:05:24,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-14 05:05:24,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=748, Unknown=0, NotChecked=0, Total=812 [2020-10-14 05:05:24,968 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand 29 states. [2020-10-14 05:05:25,522 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-14 05:05:26,261 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2020-10-14 05:05:26,660 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-14 05:05:27,024 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-14 05:05:27,619 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-14 05:05:27,963 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-14 05:05:30,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:05:30,122 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2020-10-14 05:05:30,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-14 05:05:30,123 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 51 [2020-10-14 05:05:30,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:05:30,124 INFO L225 Difference]: With dead ends: 75 [2020-10-14 05:05:30,124 INFO L226 Difference]: Without dead ends: 70 [2020-10-14 05:05:30,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=167, Invalid=1995, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 05:05:30,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-14 05:05:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 59. [2020-10-14 05:05:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-14 05:05:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2020-10-14 05:05:30,137 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 51 [2020-10-14 05:05:30,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:05:30,138 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2020-10-14 05:05:30,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-14 05:05:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2020-10-14 05:05:30,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-14 05:05:30,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:05:30,139 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:05:30,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 05:05:30,140 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:05:30,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:05:30,140 INFO L82 PathProgramCache]: Analyzing trace with hash -500232556, now seen corresponding path program 2 times [2020-10-14 05:05:30,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:05:30,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29477278] [2020-10-14 05:05:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:05:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:30,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:30,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:33,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:33,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 05:05:33,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3656 [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 05:05:33,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:33,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:05:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:33,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:33,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:33,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:33,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:33,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:33,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:05:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:33,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:33,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:33,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-14 05:05:33,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:33,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 05:05:33,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:33,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:05:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 05:05:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 05:05:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:33,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:33,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:33,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:33,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:33,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:33,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:05:33,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:33,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:05:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:33,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:05:33,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:34,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:05:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:34,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:34,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:34,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:05:34,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:34,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:05:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:05:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:34,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 05:05:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:34,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:34,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:34,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:34,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 05:05:34,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:34,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:05:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:05:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:34,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 05:05:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 05:05:34,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:34,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:34,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:34,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:34,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-14 05:05:34,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29477278] [2020-10-14 05:05:34,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:05:34,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 05:05:34,048 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361910129] [2020-10-14 05:05:34,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:05:34,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:05:34,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:05:34,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:05:34,050 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 8 states. [2020-10-14 05:05:34,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:05:34,294 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2020-10-14 05:05:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:05:34,295 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2020-10-14 05:05:34,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:05:34,296 INFO L225 Difference]: With dead ends: 83 [2020-10-14 05:05:34,297 INFO L226 Difference]: Without dead ends: 48 [2020-10-14 05:05:34,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-14 05:05:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-14 05:05:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-14 05:05:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-14 05:05:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-14 05:05:34,306 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 56 [2020-10-14 05:05:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:05:34,307 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-14 05:05:34,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:05:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-14 05:05:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 05:05:34,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:05:34,308 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:05:34,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 05:05:34,309 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:05:34,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:05:34,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1709195820, now seen corresponding path program 2 times [2020-10-14 05:05:34,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:05:34,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168732431] [2020-10-14 05:05:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:05:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:34,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:35,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:37,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:38,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:39,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 05:05:39,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 05:05:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5124 [2020-10-14 05:05:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:39,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-14 05:05:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:05:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 05:05:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:05:40,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:05:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:40,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:40,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:40,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:05:40,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:40,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:05:40,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:40,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:40,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:05:40,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:40,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:05:40,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:40,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:05:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:40,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:40,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:40,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:05:40,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:40,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-10-14 05:05:40,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:40,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-14 05:05:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:40,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 05:05:40,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:05:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:41,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:41,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:05:41,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:05:41,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:41,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:05:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:41,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:41,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:41,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:05:41,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 05:05:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:41,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:41,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:05:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:41,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:05:41,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:05:41,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:05:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:05:41,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:05:42,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:05:42,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:05:42,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:05:42,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-14 05:05:42,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:05:42,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:05:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 05:05:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:05:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:05:42,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:05:43,627 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2020-10-14 05:06:48,324 WARN L193 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 380 DAG size of output: 245 [2020-10-14 05:06:52,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:06:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:06:52,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:06:52,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:06:52,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:06:52,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:06:52,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 05:06:52,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:06:52,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:06:52,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:06:52,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:06:52,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:06:52,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:06:53,027 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 42 [2020-10-14 05:06:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:06:53,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168732431] [2020-10-14 05:06:53,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:06:53,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 05:06:53,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677299609] [2020-10-14 05:06:53,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-14 05:06:53,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:06:53,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-14 05:06:53,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2020-10-14 05:06:53,064 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 32 states. [2020-10-14 05:06:54,909 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-10-14 05:06:56,851 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-14 05:06:57,432 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2020-10-14 05:06:58,390 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2020-10-14 05:07:02,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:07:02,183 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2020-10-14 05:07:02,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-14 05:07:02,184 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 54 [2020-10-14 05:07:02,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:07:02,186 INFO L225 Difference]: With dead ends: 59 [2020-10-14 05:07:02,186 INFO L226 Difference]: Without dead ends: 57 [2020-10-14 05:07:02,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 75.4s TimeCoverageRelationStatistics Valid=207, Invalid=2549, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 05:07:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-14 05:07:02,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2020-10-14 05:07:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 05:07:02,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-10-14 05:07:02,199 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 54 [2020-10-14 05:07:02,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:07:02,199 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-10-14 05:07:02,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-14 05:07:02,199 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2020-10-14 05:07:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-14 05:07:02,200 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:07:02,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:07:02,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 05:07:02,201 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:07:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:07:02,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1709152110, now seen corresponding path program 1 times [2020-10-14 05:07:02,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:07:02,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724763663] [2020-10-14 05:07:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:07:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:02,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:03,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:06,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:07,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:07,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 05:07:07,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:07:07,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5268 [2020-10-14 05:07:07,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:07,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-14 05:07:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:07:07,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 05:07:07,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:07,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:07:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:07,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:07,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:07,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:07,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:07:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:07,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:07,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:07,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:07:07,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:07,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 05:07:07,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:07,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:07:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:07,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:07:07,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:08,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:08,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:08,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:08,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:08,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:08,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 05:07:08,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:08,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:08,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:07:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:08,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:07:08,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:07:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:07:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:08,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:08,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:08,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:08,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:08,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 05:07:08,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:08,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:07:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:08,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:07:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:08,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:07:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:08,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:08,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:08,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:07:08,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:08,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 05:07:08,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:08,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 05:07:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:07:08,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:07:08,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:08,942 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-14 05:07:09,206 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-10-14 05:07:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:09,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:09,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:09,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:09,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:07:09,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 05:07:09,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724763663] [2020-10-14 05:07:09,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:07:09,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-14 05:07:09,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260899095] [2020-10-14 05:07:09,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-14 05:07:09,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:07:09,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-14 05:07:09,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702 [2020-10-14 05:07:09,670 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 27 states. [2020-10-14 05:07:10,132 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-14 05:07:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:07:11,252 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2020-10-14 05:07:11,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 05:07:11,254 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 54 [2020-10-14 05:07:11,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:07:11,255 INFO L225 Difference]: With dead ends: 56 [2020-10-14 05:07:11,255 INFO L226 Difference]: Without dead ends: 54 [2020-10-14 05:07:11,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2020-10-14 05:07:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-14 05:07:11,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-10-14 05:07:11,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 05:07:11,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2020-10-14 05:07:11,265 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 54 [2020-10-14 05:07:11,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:07:11,266 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-10-14 05:07:11,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-14 05:07:11,266 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2020-10-14 05:07:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-14 05:07:11,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:07:11,267 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:07:11,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 05:07:11,268 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:07:11,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:07:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1444109707, now seen corresponding path program 1 times [2020-10-14 05:07:11,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:07:11,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604946808] [2020-10-14 05:07:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:07:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:11,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 05:07:12,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:07:12,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 756 [2020-10-14 05:07:12,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:07:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:07:12,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 05:07:12,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:07:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:07:12,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:07:12,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:12,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:12,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:07:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:07:12,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 05:07:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 05:07:12,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:07:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:12,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:07:12,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:12,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:12,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:12,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:07:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:12,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:12,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:07:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:07:12,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:12,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 05:07:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 05:07:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 05:07:12,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:12,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:12,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:12,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:12,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:07:12,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:12,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:12,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:12,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:12,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 05:07:12,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604946808] [2020-10-14 05:07:12,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:07:12,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:07:12,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127415869] [2020-10-14 05:07:12,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:07:12,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:07:12,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:07:12,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:07:12,360 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 9 states. [2020-10-14 05:07:12,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:07:12,780 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions. [2020-10-14 05:07:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:07:12,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2020-10-14 05:07:12,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:07:12,783 INFO L225 Difference]: With dead ends: 65 [2020-10-14 05:07:12,783 INFO L226 Difference]: Without dead ends: 60 [2020-10-14 05:07:12,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-10-14 05:07:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-14 05:07:12,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2020-10-14 05:07:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-14 05:07:12,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2020-10-14 05:07:12,793 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 55 [2020-10-14 05:07:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:07:12,793 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2020-10-14 05:07:12,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:07:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2020-10-14 05:07:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 05:07:12,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:07:12,794 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:07:12,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 05:07:12,795 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:07:12,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:07:12,795 INFO L82 PathProgramCache]: Analyzing trace with hash 481120898, now seen corresponding path program 3 times [2020-10-14 05:07:12,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:07:12,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035484756] [2020-10-14 05:07:12,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:07:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:12,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:14,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:15,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:17,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:17,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 05:07:17,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 05:07:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:18,245 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2020-10-14 05:07:18,434 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-10-14 05:07:18,639 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-10-14 05:07:18,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:07:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:18,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:18,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:18,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:07:18,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:07:18,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:19,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:07:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:07:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:19,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:19,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:19,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 05:07:19,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:19,784 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2020-10-14 05:07:20,197 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2020-10-14 05:07:20,408 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2020-10-14 05:07:20,658 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2020-10-14 05:07:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:20,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:20,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:20,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:20,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:20,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 05:07:20,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:20,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:07:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:07:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:07:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:20,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:20,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:20,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:20,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:20,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 05:07:20,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:20,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:20,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:07:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:20,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 05:07:20,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:21,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:07:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:21,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:07:21,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:07:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:07:21,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:22,471 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-10-14 05:07:23,669 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2020-10-14 05:07:24,732 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 125 [2020-10-14 05:07:24,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:24,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:24,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 05:07:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:24,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:07:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:07:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:07:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:07:25,626 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 46 [2020-10-14 05:07:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:07:25,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035484756] [2020-10-14 05:07:25,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:07:25,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-14 05:07:25,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124049418] [2020-10-14 05:07:25,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-14 05:07:25,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:07:25,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-14 05:07:25,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=922, Unknown=0, NotChecked=0, Total=992 [2020-10-14 05:07:25,658 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 32 states. [2020-10-14 05:07:26,531 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-14 05:07:27,118 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-10-14 05:07:27,566 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2020-10-14 05:07:28,176 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 93 [2020-10-14 05:07:31,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:07:31,273 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2020-10-14 05:07:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-14 05:07:31,275 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 58 [2020-10-14 05:07:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:07:31,276 INFO L225 Difference]: With dead ends: 63 [2020-10-14 05:07:31,277 INFO L226 Difference]: Without dead ends: 61 [2020-10-14 05:07:31,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=165, Invalid=2091, Unknown=0, NotChecked=0, Total=2256 [2020-10-14 05:07:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-10-14 05:07:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2020-10-14 05:07:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-14 05:07:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2020-10-14 05:07:31,289 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 58 [2020-10-14 05:07:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:07:31,289 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2020-10-14 05:07:31,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-14 05:07:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2020-10-14 05:07:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-14 05:07:31,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:07:31,291 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:07:31,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 05:07:31,291 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:07:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:07:31,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2028492789, now seen corresponding path program 2 times [2020-10-14 05:07:31,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:07:31,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284846641] [2020-10-14 05:07:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:07:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:31,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:34,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:36,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:36,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 05:07:36,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 05:07:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 05:07:36,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:36,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-14 05:07:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 05:07:36,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-14 05:07:36,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:37,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:07:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:37,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:37,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:07:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:07:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:37,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 05:07:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:37,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:37,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:37,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 05:07:37,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 05:07:37,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:37,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 05:07:37,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 05:07:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:37,796 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-14 05:07:37,967 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2020-10-14 05:07:38,166 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-10-14 05:07:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:38,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:38,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:38,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 05:07:38,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:38,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:07:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:07:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:38,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 05:07:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:38,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:38,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:38,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:38,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:38,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 05:07:38,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:38,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 05:07:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:07:38,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 05:07:38,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 05:07:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:38,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:38,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:38,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 05:07:38,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-14 05:07:38,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:38,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 05:07:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:07:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 05:07:38,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:07:39,394 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-14 05:07:40,008 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2020-10-14 05:07:40,533 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-10-14 05:07:40,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 05:07:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:07:40,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:07:40,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:07:40,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 05:07:40,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 05:07:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:07:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 05:07:40,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284846641] [2020-10-14 05:07:40,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:07:40,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-14 05:07:40,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380971560] [2020-10-14 05:07:40,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-14 05:07:40,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:07:40,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-14 05:07:40,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=861, Unknown=0, NotChecked=0, Total=930 [2020-10-14 05:07:40,919 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 31 states. [2020-10-14 05:07:41,786 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-10-14 05:07:42,004 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2020-10-14 05:07:42,298 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2020-10-14 05:07:42,768 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79 [2020-10-14 05:07:44,291 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-10-14 05:07:44,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:07:44,741 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2020-10-14 05:07:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-14 05:07:44,741 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 59 [2020-10-14 05:07:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:07:44,742 INFO L225 Difference]: With dead ends: 61 [2020-10-14 05:07:44,742 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:07:44,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=170, Invalid=1992, Unknown=0, NotChecked=0, Total=2162 [2020-10-14 05:07:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:07:44,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:07:44,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:07:44,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:07:44,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2020-10-14 05:07:44,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:07:44,745 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:07:44,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-14 05:07:44,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:07:44,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:07:44,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 05:07:44,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:07:44,875 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 251 [2020-10-14 05:07:46,199 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 251 DAG size of output: 74 [2020-10-14 05:07:46,562 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 51 [2020-10-14 05:07:47,755 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 252 DAG size of output: 119 [2020-10-14 05:07:48,237 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2020-10-14 05:07:49,171 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 124 [2020-10-14 05:07:49,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:07:49,175 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:07:49,176 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-10-14 05:07:49,176 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-10-14 05:07:49,176 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-10-14 05:07:49,176 INFO L268 CegarLoopResult]: For program point dll_circular_appendEXIT(lines 601 614) no Hoare annotation was computed. [2020-10-14 05:07:49,176 INFO L268 CegarLoopResult]: For program point L603(lines 603 613) no Hoare annotation was computed. [2020-10-14 05:07:49,176 INFO L264 CegarLoopResult]: At program point dll_circular_appendENTRY(lines 601 614) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,176 INFO L264 CegarLoopResult]: At program point L602(line 602) the Hoare annotation is: (and (= |dll_circular_append_#in~head.offset| dll_circular_append_~head.offset) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |dll_circular_append_#in~data| dll_circular_append_~data) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= dll_circular_append_~head.base |dll_circular_append_#in~head.base|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,176 INFO L268 CegarLoopResult]: For program point L602-1(line 602) no Hoare annotation was computed. [2020-10-14 05:07:49,176 INFO L268 CegarLoopResult]: For program point L603-2(lines 601 614) no Hoare annotation was computed. [2020-10-14 05:07:49,176 INFO L264 CegarLoopResult]: At program point dll_circular_destroyENTRY(lines 590 600) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-10-14 05:07:49,177 INFO L268 CegarLoopResult]: For program point L591(lines 591 599) no Hoare annotation was computed. [2020-10-14 05:07:49,177 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-10-14 05:07:49,177 INFO L268 CegarLoopResult]: For program point L593-3(lines 593 597) no Hoare annotation was computed. [2020-10-14 05:07:49,177 INFO L268 CegarLoopResult]: For program point L591-2(lines 590 600) no Hoare annotation was computed. [2020-10-14 05:07:49,177 INFO L268 CegarLoopResult]: For program point dll_circular_destroyEXIT(lines 590 600) no Hoare annotation was computed. [2020-10-14 05:07:49,177 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-10-14 05:07:49,177 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-10-14 05:07:49,178 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-10-14 05:07:49,178 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-10-14 05:07:49,178 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-10-14 05:07:49,178 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-10-14 05:07:49,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:07:49,179 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:07:49,179 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:07:49,179 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:07:49,179 INFO L268 CegarLoopResult]: For program point L634(lines 634 636) no Hoare annotation was computed. [2020-10-14 05:07:49,179 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 615 641) no Hoare annotation was computed. [2020-10-14 05:07:49,179 INFO L268 CegarLoopResult]: For program point L630(lines 630 632) no Hoare annotation was computed. [2020-10-14 05:07:49,180 INFO L268 CegarLoopResult]: For program point L624(lines 624 626) no Hoare annotation was computed. [2020-10-14 05:07:49,180 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 615 641) no Hoare annotation was computed. [2020-10-14 05:07:49,180 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (let ((.cse4 (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|)) (.cse0 (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|))) (let ((.cse6 (select |#memory_$Pointer$.base| .cse0)) (.cse8 (+ .cse4 4)) (.cse7 (select |#memory_$Pointer$.offset| .cse0))) (let ((.cse5 (select .cse7 .cse4)) (.cse3 (select .cse7 .cse8)) (.cse1 (select .cse6 4)) (.cse2 (select .cse6 .cse8))) (and (= main_~data~0 (select (select |#memory_int| .cse0) 8)) (not (= |main_~#s~0.base| .cse1)) (= (select (select |#memory_int| .cse2) (+ .cse3 8)) main_~data~0) (= .cse4 .cse5) (not (= main_~uneq~0 (select (select |#memory_int| .cse1) 8))) (<= (+ .cse0 2) |main_~#s~0.base|) (= main_~data~0 1) (= (select .cse6 .cse4) .cse1) (= main_~len~0 2) (= (select |#valid| .cse0) 1) (= |main_~#s~0.offset| (select .cse7 4)) (= .cse3 0) (= .cse5 .cse3) (not (= .cse0 0)) (= (select |#valid| .cse1) 1) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (not (= .cse2 .cse0)))))) [2020-10-14 05:07:49,180 INFO L268 CegarLoopResult]: For program point L620-1(line 620) no Hoare annotation was computed. [2020-10-14 05:07:49,181 INFO L264 CegarLoopResult]: At program point L618(line 618) the Hoare annotation is: (let ((.cse0 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|)) (.cse2 (@diff |old(#memory_int)| |#memory_int|)) (.cse1 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))) (and (= main_~len~0 2) (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (and (<= (+ .cse0 1) |#StackHeapBarrier|) (= (select |old(#valid)| .cse0) 0))) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse1 (select |#memory_$Pointer$.base| .cse1))) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse0 (select |#memory_$Pointer$.offset| .cse0))) (= |main_~#s~0.offset| 0) (= (store |old(#memory_int)| .cse2 (select |#memory_int| .cse2)) |#memory_int|) (or (= |#memory_int| |old(#memory_int)|) (= (select |old(#valid)| .cse2) 0)) (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|) (= main_~data~0 1) (or (and (= (select |old(#valid)| .cse1) 0) (<= (+ .cse1 1) |#StackHeapBarrier|)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)))) [2020-10-14 05:07:49,181 INFO L268 CegarLoopResult]: For program point L618-1(line 618) no Hoare annotation was computed. [2020-10-14 05:07:49,181 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 639) no Hoare annotation was computed. [2020-10-14 05:07:49,181 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 615 641) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,181 INFO L271 CegarLoopResult]: At program point L637(line 637) the Hoare annotation is: true [2020-10-14 05:07:49,181 INFO L268 CegarLoopResult]: For program point L637-1(line 637) no Hoare annotation was computed. [2020-10-14 05:07:49,181 INFO L264 CegarLoopResult]: At program point L635(lines 615 641) the Hoare annotation is: false [2020-10-14 05:07:49,182 INFO L268 CegarLoopResult]: For program point L623-1(lines 623 629) no Hoare annotation was computed. [2020-10-14 05:07:49,182 INFO L268 CegarLoopResult]: For program point L623-2(lines 623 629) no Hoare annotation was computed. [2020-10-14 05:07:49,182 INFO L264 CegarLoopResult]: At program point L623-4(lines 623 629) the Hoare annotation is: (let ((.cse34 (select |#memory_$Pointer$.base| |main_~#s~0.base|))) (let ((.cse35 (select |#memory_$Pointer$.offset| |main_~#s~0.base|)) (.cse37 (select .cse34 |main_~#s~0.offset|))) (let ((.cse36 (select |#memory_$Pointer$.base| .cse37)) (.cse38 (select |#memory_$Pointer$.offset| .cse37)) (.cse21 (select .cse35 |main_~#s~0.offset|))) (let ((.cse29 (select .cse38 .cse21)) (.cse28 (select .cse36 .cse21))) (let ((.cse0 (select (select |#memory_int| .cse28) 8)) (.cse6 (select (select |#memory_int| main_~ptr~0.base) (+ main_~ptr~0.offset 8))) (.cse18 (select .cse38 4)) (.cse20 (select |#memory_int| .cse37)) (.cse27 (select (select |#memory_$Pointer$.offset| .cse28) .cse29)) (.cse25 (select (select |#memory_$Pointer$.base| .cse28) .cse29)) (.cse3 (select (select |#memory_$Pointer$.base| main_~ptr~0.base) main_~ptr~0.offset)) (.cse24 (select (select |#memory_$Pointer$.offset| main_~ptr~0.base) main_~ptr~0.offset)) (.cse2 (select .cse36 4))) (let ((.cse1 (= main_~uneq~0 (select (select |#memory_int| .cse2) 8))) (.cse10 (select (select |#memory_$Pointer$.base| .cse3) .cse24)) (.cse11 (select (select |#memory_$Pointer$.offset| .cse3) .cse24)) (.cse5 (= .cse21 0)) (.cse4 (let ((.cse32 (= |main_~#s~0.base| .cse25)) (.cse33 (select .cse35 .cse27)) (.cse30 (= (select (select |#memory_$Pointer$.offset| .cse25) .cse27) .cse29)) (.cse31 (select (select |#memory_$Pointer$.base| .cse25) .cse27))) (or (and .cse30 (= .cse28 .cse31)) (and .cse32 (= |main_~#s~0.offset| .cse27) (= main_~data~0 (select .cse20 (+ .cse33 8)))) (and .cse32 (= (select (select |#memory_int| (select .cse34 .cse27)) 8) main_~data~0) (= .cse33 0)) (and (= .cse29 0) .cse30 (= main_~data~0 (select (select |#memory_int| .cse31) 8)))))) (.cse7 (let ((.cse26 (= .cse29 .cse18))) (or (and (= .cse2 .cse25) .cse26 (= .cse18 .cse27)) (and .cse26 (= .cse28 .cse2))))) (.cse9 (= main_~data~0 1)) (.cse12 (= .cse18 0)) (.cse13 (= main_~data~0 .cse6)) (.cse14 (= main_~len~0 2)) (.cse15 (= .cse24 .cse18)) (.cse16 (= |main_~#s~0.offset| 0)) (.cse17 (<= (+ |#StackHeapBarrier| 1) |main_~#s~0.base|)) (.cse19 (= .cse0 (select .cse20 8)))) (or (let ((.cse8 (+ main_~count~0 1))) (and (not (= main_~uneq~0 .cse0)) .cse1 (= .cse2 .cse3) .cse4 .cse5 (not (= main_~uneq~0 .cse6)) .cse7 (<= .cse8 main_~len~0) .cse9 (= (select (select |#memory_int| .cse10) (+ .cse11 8)) main_~data~0) .cse12 .cse13 .cse14 (<= main_~len~0 .cse8) .cse15 .cse16 .cse17 (= main_~ptr~0.offset .cse18) .cse19)) (let ((.cse23 (+ main_~count~0 2)) (.cse22 (select (select |#memory_int| .cse3) 8))) (and .cse1 (= (select .cse20 (+ .cse21 8)) main_~data~0) (= .cse10 .cse2) (= .cse18 .cse11) .cse5 .cse4 .cse7 .cse9 (= .cse22 .cse6) .cse12 .cse13 .cse14 .cse15 (<= main_~len~0 .cse23) (<= .cse23 main_~len~0) .cse16 (= .cse21 main_~ptr~0.offset) .cse17 (not (= main_~uneq~0 .cse22)) .cse19))))))))) [2020-10-14 05:07:49,182 INFO L268 CegarLoopResult]: For program point L623-5(lines 623 629) no Hoare annotation was computed. [2020-10-14 05:07:49,182 INFO L268 CegarLoopResult]: For program point L578-1(line 578) no Hoare annotation was computed. [2020-10-14 05:07:49,183 INFO L264 CegarLoopResult]: At program point L575(line 575) the Hoare annotation is: (and (= dll_circular_create_~data |dll_circular_create_#in~data|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= dll_circular_create_~len |dll_circular_create_#in~len|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,183 INFO L264 CegarLoopResult]: At program point L577-2(lines 577 585) the Hoare annotation is: (let ((.cse11 (select (select |#memory_int| dll_circular_create_~head~0.base) 8))) (let ((.cse2 (<= (+ dll_circular_create_~last~0.base 1) |#StackHeapBarrier|)) (.cse3 (= .cse11 |dll_circular_create_#in~data|)) (.cse10 (select |#valid| dll_circular_create_~last~0.base)) (.cse7 (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base)) (.cse8 (= dll_circular_create_~head~0.offset 0)) (.cse0 (= dll_circular_create_~data |dll_circular_create_#in~data|)) (.cse5 (not (= dll_circular_create_~head~0.base 0))) (.cse6 (not (= dll_circular_create_~new_head~0.base 0)))) (or (let ((.cse1 (select (select |#memory_$Pointer$.offset| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset)) (.cse4 (+ dll_circular_create_~head~0.offset 4)) (.cse9 (select |#valid| dll_circular_create_~head~0.base))) (and .cse0 (= .cse1 0) .cse2 (= dll_circular_create_~last~0.offset 0) .cse3 (= (select (store (select (store |#memory_$Pointer$.base| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.base| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.base)) dll_circular_create_~head~0.base) .cse4 dll_circular_create_~last~0.base) dll_circular_create_~head~0.offset) dll_circular_create_~last~0.base) (<= (+ dll_circular_create_~head~0.base 1) |#StackHeapBarrier|) (= .cse1 dll_circular_create_~new_head~0.offset) (not (= dll_circular_create_~new_head~0.base dll_circular_create_~last~0.base)) (= dll_circular_create_~head~0.offset (select (store (select (store |#memory_$Pointer$.offset| dll_circular_create_~last~0.base (store (select |#memory_$Pointer$.offset| dll_circular_create_~last~0.base) dll_circular_create_~last~0.offset dll_circular_create_~head~0.offset)) dll_circular_create_~head~0.base) .cse4 dll_circular_create_~last~0.offset) dll_circular_create_~head~0.offset)) (<= (+ dll_circular_create_~new_head~0.base 1) |#StackHeapBarrier|) .cse5 (= (select (select |#memory_int| dll_circular_create_~new_head~0.base) 8) |dll_circular_create_#in~data|) .cse6 (= (select (select |#memory_$Pointer$.base| dll_circular_create_~new_head~0.base) dll_circular_create_~new_head~0.offset) dll_circular_create_~last~0.base) (= (select |#valid| dll_circular_create_~new_head~0.base) 1) (not .cse7) (= (+ dll_circular_create_~len 1) |dll_circular_create_#in~len|) .cse8 (= .cse9 1) (= .cse10 .cse9) (= .cse11 (select (select |#memory_int| dll_circular_create_~last~0.base) 8)))) (let ((.cse14 (@diff |old(#memory_int)| |#memory_int|)) (.cse12 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|)) (.cse13 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))) (and (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (and (<= (+ .cse12 1) |#StackHeapBarrier|) (= (select |old(#valid)| .cse12) 0))) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse13 (select |#memory_$Pointer$.base| .cse13))) (= dll_circular_create_~len |dll_circular_create_#in~len|) .cse2 .cse3 (= (store |old(#memory_int)| .cse14 (select |#memory_int| .cse14)) |#memory_int|) (or (= |#memory_int| |old(#memory_int)|) (= (select |old(#valid)| .cse14) 0)) (= .cse10 1) .cse7 (= .cse11 dll_circular_create_~data) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset) .cse8 (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse12 (select |#memory_$Pointer$.offset| .cse12))) (or (and (= (select |old(#valid)| .cse13) 0) (<= (+ .cse13 1) |#StackHeapBarrier|)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)))) (and .cse0 .cse5 .cse6 (<= 3 |dll_circular_create_#in~len|))))) [2020-10-14 05:07:49,183 INFO L268 CegarLoopResult]: For program point dll_circular_createEXIT(lines 574 589) no Hoare annotation was computed. [2020-10-14 05:07:49,183 INFO L268 CegarLoopResult]: For program point L575-1(line 575) no Hoare annotation was computed. [2020-10-14 05:07:49,183 INFO L268 CegarLoopResult]: For program point L577-3(lines 577 585) no Hoare annotation was computed. [2020-10-14 05:07:49,184 INFO L268 CegarLoopResult]: For program point dll_circular_createFINAL(lines 574 589) no Hoare annotation was computed. [2020-10-14 05:07:49,184 INFO L268 CegarLoopResult]: For program point L580(lines 580 582) no Hoare annotation was computed. [2020-10-14 05:07:49,184 INFO L264 CegarLoopResult]: At program point dll_circular_createENTRY(lines 574 589) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,184 INFO L264 CegarLoopResult]: At program point L578(line 578) the Hoare annotation is: (or (let ((.cse3 (@diff |old(#memory_int)| |#memory_int|)) (.cse2 (select (select |#memory_int| dll_circular_create_~head~0.base) 8)) (.cse0 (@diff |old(#memory_$Pointer$.offset)| |#memory_$Pointer$.offset|)) (.cse1 (@diff |old(#memory_$Pointer$.base)| |#memory_$Pointer$.base|))) (and (or (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (and (<= (+ .cse0 1) |#StackHeapBarrier|) (= (select |old(#valid)| .cse0) 0))) (= |#memory_$Pointer$.base| (store |old(#memory_$Pointer$.base)| .cse1 (select |#memory_$Pointer$.base| .cse1))) (= dll_circular_create_~len |dll_circular_create_#in~len|) (<= (+ dll_circular_create_~last~0.base 1) |#StackHeapBarrier|) (= .cse2 |dll_circular_create_#in~data|) (= (store |old(#memory_int)| .cse3 (select |#memory_int| .cse3)) |#memory_int|) (or (= |#memory_int| |old(#memory_int)|) (= (select |old(#valid)| .cse3) 0)) (= (select |#valid| dll_circular_create_~last~0.base) 1) (= dll_circular_create_~head~0.base dll_circular_create_~last~0.base) (= .cse2 dll_circular_create_~data) (= dll_circular_create_~head~0.offset dll_circular_create_~last~0.offset) (= dll_circular_create_~head~0.offset 0) (= |#memory_$Pointer$.offset| (store |old(#memory_$Pointer$.offset)| .cse0 (select |#memory_$Pointer$.offset| .cse0))) (or (and (= (select |old(#valid)| .cse1) 0) (<= (+ .cse1 1) |#StackHeapBarrier|)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)))) (and (= dll_circular_create_~data |dll_circular_create_#in~data|) (not (= dll_circular_create_~head~0.base 0)) (not (= dll_circular_create_~new_head~0.base 0)) (<= 3 |dll_circular_create_#in~len|))) [2020-10-14 05:07:49,184 INFO L268 CegarLoopResult]: For program point L580-2(lines 580 582) no Hoare annotation was computed. [2020-10-14 05:07:49,184 INFO L264 CegarLoopResult]: At program point node_createENTRY(lines 564 573) the Hoare annotation is: (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#valid)| |#valid|)) [2020-10-14 05:07:49,185 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-10-14 05:07:49,185 INFO L271 CegarLoopResult]: At program point L567(line 567) the Hoare annotation is: true [2020-10-14 05:07:49,185 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-10-14 05:07:49,185 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-10-14 05:07:49,185 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-10-14 05:07:49,199 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:246) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:693) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-14 05:07:49,204 INFO L168 Benchmark]: Toolchain (without parser) took 202248.64 ms. Allocated memory was 147.8 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 103.1 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-14 05:07:49,205 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 05:07:49,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.26 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 170.2 MB in the end (delta: -67.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-14 05:07:49,206 INFO L168 Benchmark]: Boogie Preprocessor took 67.01 ms. Allocated memory is still 205.0 MB. Free memory was 170.2 MB in the beginning and 166.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-10-14 05:07:49,206 INFO L168 Benchmark]: RCFGBuilder took 808.23 ms. Allocated memory is still 205.0 MB. Free memory was 166.4 MB in the beginning and 113.7 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. [2020-10-14 05:07:49,207 INFO L168 Benchmark]: TraceAbstraction took 200714.78 ms. Allocated memory was 205.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 112.8 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2020-10-14 05:07:49,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.26 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 170.2 MB in the end (delta: -67.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.01 ms. Allocated memory is still 205.0 MB. Free memory was 170.2 MB in the beginning and 166.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 808.23 ms. Allocated memory is still 205.0 MB. Free memory was 166.4 MB in the beginning and 113.7 MB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200714.78 ms. Allocated memory was 205.0 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 112.8 MB in the beginning and 1.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 639]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (@diff (Array Int (Array Int Int)) (Array Int (Array Int Int)) Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.getBinaryOperator(Term2Expression.java:553) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...